Help with dates of Manufacture

[Dale Medders]

I have a set of Trojan barrels.
They have no serial #
F is stamped on Left Flat
OV is on the Right flat and HT
A
What year were they?

Thankyou.

[Dean Romig]

The serial number will be stamped on the side of the barrel lug. The serial number is the only way we can determine year of manufacture.

[Dale Medders]

OK found it 189224 would be 1920 I figure.
Thank you